bauer



(No Model.)

0." e e h S m e e h S 2 m B UM A 0 DD- R E 0 c No. 59,861. Patented Nov. 2,1897.

1.5% QMM E R NKM QQ UNITED STATES PATENT OF ICE- CARL E. BAUER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE SIMPLEX RAIL- WAY APPLIANCE COMPANY, OF SAME PLACE.

'CAR-BOLSTER.

SPECIFICATION forming part of Letters Patent No. 592,861, dated November 2, 1897.

Application filed August 30, 1897. Serial No. 650,033. (No model.)

To all whom it may concern.-

Be it known that I, CARL E. BAUER, a citizen of the United States, residing in Chicago, Cook county, Illinois, have invented certain new and useful Improvements in Oar-Bolsters, of which the following is a specification.

My invention has for its object the construction of an'improved car-bolster having a compression member, a tension member, and a middle support, and the combination therewith of a novel joint for uniting the ends of said compression and tension members, comprising one or more openings in one of said members and one or more projections on the other of said members adapted to engage said openings. These and such other objects as may hereinafter appear I attain in the manner illustrated in the accompanying drawings, in which- Figure 1 is a partial side view of a bolster embodying my improvements having a portion thereof shown in section. Fig. 2 is a plan View of the same. Fig. 3 is a section on the line 3 3 of Fig. 1. Fig. lis a plan view of my improvement slightly altered at the end, and Fig. 5 shows a sectional detail of Fig. 4. Fig. 6 is a partial elevation and section showing a reversal of my invention. Fig.7 is a plan of the same. Fig. 8 is a section on the line 8 8 of Fig. 6; and Fig. 9 illustrates a modification of the construction shown in Figs. 6, 7, and 8, in which a pair of T-irons are employed as a tension member instead of the pair of L-irons used in the form of Fig. 8.

Referring now more particularly to Figs. 1, 2, and 3, it will be seen that for both a compression member and a tension member I have here employed a piece of metal of a channel shape, the compression member 10 and the tension member 11 being separated at or near their middle point by a middle support or brace 12, which can be of any preferred shape. have made a couple of oblong holes, (marked 13,) projections 14, adapted to engage or interlock with these holes, being formed on the compression member by partially cutting away the flanges of the same at the ends in the manner shown. When the ends are placed together, as shown in Fig. 1, the whole is made more secure by riveting over the pro- In the end of the tension member I jections, as shown at 15, and then, if desired, still greater strength may be obtained by bending up the end of the tension-member web, as shown at 16, and'inserting a number of rivets 17.

The construction shown in Figs. 4 and 5 has less of the compression-member flange cut away than is the case in the construction of Fig. 1, and the upward-projecting corners of the flanges of the tension member wrapped around the compression member, as shown at 18, this arrangement making a secure joint without as many rivets and not requiring the riveting down of the outer part of the projection 14.

Figs. 6, 7, and 8 showa reversal on the improvement shown in the preceding figures, this construction having the openings formed in the compression member and the projec- 7o tions formed on the tension member instead of vice versa, but the invention is essentially the same. In this construction I have also shown the change made in the tension member by employing two Ls in its composition instead of a channel, as used in the one previously described. The details of this will be readily understood by an examination of the drawings, especially Figs. 7 and 8.

Two T-irons or a plurality of strips of any 8 other suitable shape could be employed for a tension member, if preferred, Without departing from the spirit of my invention. In Fig.

9 I have indicated how the two T-irons would be arranged, the corresponding parts being numbered to correspond with the other views.

In most cases the arrangement or general form of construction shown in Figs. 6, 7, and 8, employing either a channel, two Ls, or two Ts for the tension member, would be 0 preferred to the form shown in the other views, because the tension member is not so wide as the compression member.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a car-bolster, the combination with a compression member, tension member, and middle support; of a joint'for uniting said compression and tension members at each end of the bolster, comprising-one or more openings in one of said members, and one or more projections formed on the other of said members, and adapted to engage said openings, substantially as shown and described.

2. In a car-bolster, the combination with a compression member, tension member, and middle support; of a joint for uniting said compression and tension members at each end of the bolster, comprising one or more openings in one of said members, and one on more projections formed on the other of said members, the ends of said compression and tension members being brought together With said projections passing through said openings and riveted on the outer side, substantially as described.

3. I11 a car-bolster, the combination with a channel-iron compression member having openings cut in its Web of a channel-iron tension member having its flanges cut at the ends to form projections adapted to engage 20 the said openings, substantially as described.

CARL E. BAUER.

Witnesses:

WM. T. KELLEY, PAUL SYNNESTVEDT. 

